The sum of any set of consecutive odd numbers starting from 1 is a square, and the quantity that is squared is the count of odd numbers in the sum. The latter is easily seen to be a count of the form 1 + 2 + 3 + 4 + ... + n. Visual demonstration that the square of a triangular number equals a sum of cubes.
shock liver A colloquial term for injury to the liver resulting from insufficient blood flow, e.g., in patients who have suffered an episode of severe hypotension. A hallmark of this condition is a sudden and marked elevation in liver enzyme levels, such as alanine aminotransferase (ALT).
shock noun (SURPRISE) B1 [ C or U ] (the emotional or physical reaction to) a sudden, unexpected, and usually unpleasant event or experience: Her mother's death came as a great shock - it was so unexpected. It was such a loud crash - it gave me/I got quite a shock. It was a shock to see her looking so ill.